Abstract: In a frequency sharing radio system including a plurality of systems that share a specific frequency, upon establishment of a new system using a frequency that an existing system uses, a receiving station of the existing system receives a signal from a transmitting station of the existing system at a transmission frequency. The receiving station of the existing system transmits a beacon signal indicating a reception range thereof at the transmission frequency. A transmitting station of the new system detects a beacon signal transmitted from a receiving station of another system, and judges whether signal transmission is possible based on a result of the detection.

Abstract: A receiving apparatus includes a CE unit that estimates a propagation channel, a PG unit that reproduces a pilot signal included in the reception signal based on the estimated channel information, an EMG unit that generates, assuming that a pilot signal included in the reception signal is a null carrier, a frequency equalization matrix based on the channel information, a PR unit that subtracts the reproduced pilot signal from a result of the DFT, and an EMM unit that multiplies the frequency equalization matrix with a signal after the subtraction.

Abstract: A radio communication system according to the present invention comprises a transmitter having a plurality of transmission antennas, and a receiver having a mechanism to perform a diversity reception. A plurality of multi-modulators of the transmitter allocates the same transmission data to a plurality of subcarriers, combines all transmission signals obtained by weighting each of the subcarriers, and outputs combined transmission signals. At least one of weight values for the same data is different between the multi-modulators in the weighting processing for each of the carriers.

Abstract: A receiving station apparatus controls a number of null carriers included in a transmission signal transmitted by a transmitting station apparatus in a communication system adopting a multicarrier modulation system to suppress inter-carrier interference by using the null carrier. For example, a reception-quality measuring unit measures a reception quality of a subcarrier group forming the transmission signal, and a number-of-null carriers determining unit determines the number of null carriers included in a next transmission signal based on the reception quality.

Abstract: A data-transmission-side communication apparatus includes a mapping unit that executes a mapping for a data sub-carrier based on a multipath delay time in a transmission path and a guard-band adding unit that changes an amount of a guard band to be added to a signal on the data sub-carrier depending on information on the guard band obtained based on the multipath delay time. A data-reception-side communication apparatus includes an equalizing unit that suppresses a multipath exceeding a guard interval based on the information on the guard band and a demapping unit that executes a demapping for an equalized signal based on the multipath delay time.

Abstract: In a frequency sharing radio system including a plurality of systems that share a specific frequency, upon establishment of a new system using a frequency that an existing system uses, a receiving station of the existing system receives a signal from a transmitting station of the existing system at a transmission frequency. The receiving station of the existing system transmits a beacon signal indicating a reception range thereof at the transmission frequency. A transmitting station of the new system detects a beacon signal transmitted from a receiving station of another system, and judges whether signal transmission is possible based on a result of the detection.

Abstract: A receiving apparatus includes a CE unit that estimates a propagation channel, a PG unit that reproduces a pilot signal included in the reception signal based on the estimated channel information, an EMG unit that generates, assuming that a pilot signal included in the reception signal is a null carrier, a frequency equalization matrix based on the channel information, a PR unit that subtracts the reproduced pilot signal from a result of the DFT, and an EMM unit that multiplies the frequency equalization matrix with a signal after the subtraction.

Abstract: A high-capacity magnetic memory capable of writing and reading a magnetic record in/from a magnetic recording film according to a perpendicular magnetic recording system at a high speed in a purely-electrically random access manner. In the magnetic memory, a writing-magnetic-field generating means 62 and a writing word line 43 are disposed relative to a perpendicular magnetic recording film 50, and a reading/writing bit-line conductor 41, a magnetoresistive-effect element 20 and a reading word lead conductor 42 are laminated in order on a probe substrate opposed to the perpendicular magnetic recording film 50. A magnetic probe 30 composed of a carbon nanotube containing a soft magnetic material is disposed relative to the magnetoresistive-effect element 20 in a standing manner, and electrically connected to the reading/writing bit-line conductor.

Abstract: Please amend the Abstract of the Disclosure currently of record as follows: A mobile vehicle which is provided with a moving means and a moving control device therefor, can automatically travel while detecting an advance distance and a turning angle by means of one optical displacement sensor, and can save on space and reduce costs. The mobile vehicle comprises a moving means (2) for moving a body (1), one optical displacement sensor (7) as a displacement sensor provided on the body (1), and a moving control device for controlling the moving means (2) based on a moving distance detected by the optical displacement sensor (7). The moving control device determines the distance of rectilinear movement and a turning angle of the body (1) from an amount detected by the optical displacement sensor (7). The optical displacement sensor (7) picks up patterns or the like on a traveling floor surface at specified time intervals and detects a moving distance by comparing images before and after a specified time.

Abstract: A radio communication system according to the present invention comprises a transmitter having a plurality of transmission antennas, and a receiver having a mechanism to perform a diversity reception. A plurality of multi-modulators of the transmitter allocates the same transmission data to a plurality of subcarriers, combines all transmission signals obtained by weighting each of the subcarriers, and outputs combined transmission signals. At least one of weight values for the same data is different between the multi-modulators in the weighting processing for each of the carriers.

Abstract: In a storage network, a number of host computers or management servers storage subsystem are connected, via a management LAN, to a management terminal that manages a storage subsystem and which is connected to a management center via a remote maintenance line. The host computer or management server transmits administrative information to the management terminal via the management LAN. The management terminal transmits the administrative information acquired from the host computer or management server to the management center via the remote maintenance line.

Abstract: An adaptive equalization apparatus within a receiver comprises a timing detector (101) that detects a timing suitable for an adaptive equalization processing, by using a first unique word, a timing adjuster (100) that extracts a standardized received signal based on a detection timing, a CIR initial value estimator (103) that estimates an initial value of a channel impulse response by using a first unique word, a CIR initial value setter (104) that sets a plurality of channel impulse response initial values based on estimated initial value, and an adaptive equalizer (102) that individually judges presence or absence of a timing slip when each initial value is used, by judging a distance between a first unique word and a second unique word disposed at a back side, and obtains a decision value by using a channel impulse response initial value that does not generate a timing slip and the extracted received signal.

Abstract: Disclosed is a high-capacity magnetic memory capable of writing and reading a magnetic record in/from a magnetic recording film according to a perpendicular magnetic recording system at a high speed in a purely-electrically random access manner. In the magnetic memory, a writing-magnetic-field generating means 62 and a writing word line 43 are disposed relative to a perpendicular magnetic recording film 50, and a reading/writing bit-line conductor 41, a magnetoresistive-effect element 20 and a reading word lead conductor 42 are laminated in order on a probe substrate opposed to the perpendicular magnetic recording film 50. A magnetic probe 30 composed of a carbon nanotube containing a soft magnetic material is disposed relative to the magnetoresistive-effect element 20 in a standing manner, and electrically connected to the reading/writing bit-line conductor.

Abstract: A radio communication system according to the present invention comprises a transmitter having a plurality of transmission antennas, and a receiver having a mechanism to perform a diversity reception. A plurality of multi-modulators of the transmitter allocates the same transmission data to a plurality of subcarriers, combines all transmission signals obtained by weighting each of the subcarriers, and outputs combined transmission signals. At least one of weight values for the same data is different between the multi-modulators in the weighting processing for each of the carriers.

Abstract: The apparatus for frequency deviation estimation comprises two CIR estimating units (0) that receive a signal containing a known sequence therein and a plurality of correlation units that calculate the cross correlation between a known sequence recognized on a receiving side and the known sequence contained in the received signal. Each of the CIR estimating units (0) estimate the CIR according to correlation values obtained at prescribed timings from the correlation units. A frequency deviation calculating unit calculates frequency deviation according to the CIR. Therefore, the CIR can be determined with a lesser amount of calculation, so that the hardware can be simplified and the power consumption can be reduced.

Abstract: Correlation power at each timing is computed, a maximum value of the correlation power is obtained, time sequence is reversed by the time-reverse circuit from the timing at which the maximum value is detected by considering the timing corresponding to the maximum value as a tentative bit timing, correlation power is compared with a threshold value, and a timing at which the correlation power exceeds the threshold value is detected and outputted by a timing detecting circuit as the bit timing.

Abstract: An over-sample sampler 3 samples a received signal at a speed of not less than a symbol rate, and a received sequence output circuit 4 distributes the sampled signal sequence to sequences of different over-sample timing numbers. Thereafter, a plurality of blind equalizers with reliability information 5A, 5B and 5C receive the distributed signal sequences and perform an adaptive equalizer process so as to output decision data and reliability information. Finally, a decision data selecting circuit 6 receives plural pieces of reliability information and decision data and outputs decision data with the highest reliability as a decision value.

Abstract: An adaptive equalization apparatus within a receiver comprises a timing detector (101) that detects a timing suitable for an adaptive equalization processing, by using a first unique word, a timing adjuster (100) that extracts a standardized received signal based on a detection timing, a CIR initial value estimator (103) that estimates an initial value of a channel impulse response by using a first unique word, a CIR initial value setter (104) that sets a plurality of channel impulse response initial values based on estimated initial value, and an adaptive equalizer (102) that individually judges presence or absence of a timing slip when each initial value is used, by judging a distance between a first unique word and a second unique word disposed at a back side, and obtains a decision value by using a channel impulse response initial value that does not generate a timing slip and the extracted received signal.

Abstract: An over-sample sampler 3 samples a received signal at a speed of not less than a symbol rate, and a received sequence output circuit 4 distributes the sampled signal sequence to sequences of different over-sample timing numbers. Thereafter, a plurality of blind equalizers with reliability information 5A, 5B and 5C receive the distributed signal sequences and perform an adaptive equalizer process so as to output decision data and reliability information. Finally, a decision data selecting circuit 6 receives plural pieces of reliability information and decision data and outputs decision data with the highest reliability as a decision value.

Abstract: An apparatus for mask data processing in which a design data format of computer aided design for an integrated circuit is transformed into mask data of an actual integrated circuit. The apparatus includes a data transformation unit for transforming a design data format of computer aided design for an integrated circuit into mask data of an actual integrated circuit, and a picture image display unit for monitoring the transformation of the design data format into the mask data. The data transformation unit includes a control central processor unit for controlling the mask data transformation, and a picture processing processor having a calculation central processor unit for a unit field.